CUMMINS QSB 6 Cylinder 6.7 L Ultra Low Sulfur Diesel Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, 2668 Engine hrs, Allison Automatic Transmission, Air Ride Cab, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, 116 in Wheelbase, Hydraulic Lift 5th Wheel